DFX audio enhancer 8 alternatives?

can anyone suggest the best alternative to DFX audio enhancer 8.
the problem is that when i turn on the DFX audio enhancer 8 on my HPdv6203TX 2 GB RAM the voice starts breaking and with out the DFX audio enhancer 8 the sound is 2 low

I have not been able to find a sol for the problem , can anyone suggest an alternative?

SRS Audio Sandbox or Izotope ozone, I use and recommend SRS

sandbox is what I found to be best.